Chair arm



FIG. 1 is a perspective view showing the top, right side and front of a chair arm which forms my new design, the broken lines in this and other figures being for illustrative purposes only and forming no part of my design;

FIG. 2 is an enlarged perspective view showing the top, right side and front of my chair arm;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a front elevational view;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a cross-section thereof taken along lines 9—9 of FIG. 6; and,

FIG. 10 is a cross-section thereof taken along lines 10—10 of FIG. 6. 

The ornamental design for a chair arm, as shown and described. 